Yes, thats a great idea.
The first few games you play, preparation is a very long and tedious process, because you have no idea what you should be doing.
Then you finally come up with a starting set up you like and it becomes rather short, but still rather tedious process of placing the tiles you need.
In fact, i think i would like to see preparation condensed into like 5-6 actions, with all of the most basic must-have structures already pre-built for each faction.